Kronecker covers and generalized Petersen graphs

The family of generalized Petersen graphs G(n,k), introduced by Coxter et al. (1950) and named by Mark Watkins (1969), is a family of cubic graphs formed by connecting the vertices of a regular polygon to the corresponding vertices of a star polygon. The Kronecker cover of a simple undirected graph G  is a a special type of bipartite covering graph of G, isomorphic to the direct (tensor) product of G and K_{2}. In the seminar we will identify generalized Petersen graphs G(n,k) that are Kronecker covers of another generalized Petersen graphs, and discuss some related questions.